CORS not getting enabled on POST via API Gateway

[shikhar1987]

Enabling cors via API gateway doesn't return the required headers. Looks like you cannot enable CORS via API gateway if you've configured lambda as proxy integration. This is mentioned here:
https://docs.aws.amazon.com/apigateway/latest/developerguide/how-to-cors.html#how-to-cors-consolelf.

Had to manually update the lambda code to include the following:

                "Access-Control-Allow-Headers" : "Content-Type",
                "Access-Control-Allow-Methods": "OPTIONS,POST,GET"

Here's the place where you should modify in case you run into a similar issue:

        callback(null, {
            statusCode: 201,
            body: JSON.stringify({
                RideId: rideId,
                Unicorn: unicorn,
                UnicornName: unicorn.Name,
                Eta: '30 seconds',
                Rider: username,
            }),
            headers: {
                'Access-Control-Allow-Origin': '*',
                "Access-Control-Allow-Headers" : "Content-Type",
                "Access-Control-Allow-Methods": "OPTIONS,POST,GET"
            },
        });

This now makes the unicorn pop up in my requested location.